From beer-loving innovators and inventors come these eight new beer products that'll make enjoying a cold one even easier.

The Growler Saver

The Growler Saver

Price $59.95

The growler is a great way to bring some keg-fresh brew home. But if you don't finish the beer, it could be stale and flat by the next day. The Growler Saver is a cap that screws on top of a growler like a normal cap, but this one has two openings. One is a nozzle for injecting some CO2, which prevents the gas in the beer from traveling to the top of the bottle by forcing it to remain in the beer. Basically, it keeps the bubbles in your brew. When you want to open your growler, hit the release valve, which allows some of the gas to escape, remove the cap, and pour a fresh pint.

BeerBug

BeerBug

Price $200 for the Bluetooth version, October ship; $225 for Wi-Fi, available at the end of the year

Fermentation is a serious matter for home brewers, and the BeerBug aims to make it easier. The BeerBug is a Bluetooth or Wi-Fi-enabled hydrometer that measures temperature, alcohol content, and gravity during home-brewing fermentation and relays that info to your smart device so you can track fermentation as it happens. The BeerBug will set the Original Gravity (the density of the must or wort compared with water) and it will also establish the Final Gravity, or you can do it yourself—either way, you'll know when your beer is ready to drink.